A356496 Squarefree integers k such that x^4 - k*y^2 = 1 has a nontrivial solution.

5, 6, 15, 29, 39, 145, 210, 255, 410, 455, 791, 905, 915, 985, 1111, 1295, 1785, 2031, 3603, 3815, 4199, 7215, 8547, 8555, 10421, 12155, 13015, 13271, 14430, 16913, 17490, 18530, 20735, 22327, 24414, 26390, 28230, 29039, 33215, 36411, 38415, 41943, 44205, 54795, 60639, 61535, 63546

Offset

1,1

Links

Michel Marcus, Table of n, a(n) for n = 1..58

J. Cohn, The Diophantine equation x^4 - Dy^2 = 1, II, Acta Arith. 78 (1997), 401-403.

Pierre Samuel, Résultats élémentaires sur certaines équations diophantiennes, Journal de Théorie des Nombres de Bordeaux, Tome 14 (2002) no. 2, pp. 629-646.

Crossrefs

Sequence in context: A247962 A241307 A185876 * A091020 A019070 A019071

Adjacent sequences: A356493 A356494 A356495 * A356497 A356498 A356499

Keyword

nonn

Author

Michel Marcus, Aug 09 2022

Status

approved